On the possible role of macrofungi in the biogeochemical fate of uranium in polluted forest soils
Language English Country Netherlands Media print-electronic
Document type Journal Article, Research Support, Non-U.S. Gov't
PubMed
25136765
DOI
10.1016/j.jhazmat.2014.07.050
PII: S0304-3894(14)00625-6
Knihovny.cz E-resources
- Keywords
- Bioaccumulation, Ectomycorrhizae, Fungi, Lead, Silver, Soil, Thorium, Uranium,
- MeSH
- Ecosystem MeSH
- Soil Pollutants analysis MeSH
- Mycorrhizae chemistry metabolism MeSH
- Soil chemistry MeSH
- Uranium analysis MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
- Geographicals
- Czech Republic MeSH
- Names of Substances
- Soil Pollutants MeSH
- Soil MeSH
- Uranium MeSH
Interactions of macrofungi with U, Th, Pb and Ag were investigated in the former ore mining district of Příbram, Czech Republic. Samples of saprotrophic (34 samples, 24 species) and ectomycorrhizal (38 samples, 26 species) macrofungi were collected from a U-polluted Norway spruce plantation and tailings and analyzed for metal content. In contrast to Ag, which was highly accumulated in fruit-bodies, concentrations of U generally did not exceed 3mg/kg which indicates a very low uptake rate and efficient exclusion of U from macrofungi. In ectomycorrhizal tips (mostly determined to species level by DNA sequencing), U contents were practically identical with those of the non-mycorrhizal fine spruce roots. These findings suggest a very limited role of macrofungi in uptake and biotransformation of U in polluted forest soils. Furthermore, accumulation of U, Th, Pb and Ag in macrofungal fruit-bodies apparently does not depend on total content and chemical fractionation of these metals in soils (tested by the BCR sequential extraction in this study).
References provided by Crossref.org
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